Furr Stitch, how?

How do I make a furr stitch. I saw a darling pair of socks with three rows of fringe like stitches all around the cuff. They said it was the furr stitch but dont know how to make it. She said you wrap the yarn around your thumb and that is all she could tell me. Thanks for any info on this stitch.

Look up loop stitch. There may be a video here about how to do it.